The list is way too long to display here in full this time, but here's an assortment of improvements since 1.12. For more details, see the README file.
Graphics fixes in Split/Second, Sol Trigger, Last Ranker, Star Wars: Clone Wars, Star Wars: The Force Unleashed, Juiced 2 and more
Vulkan performance improvement around texture loading and upscaling
Background loading of texture replacements to reduce stuttering
Fixes for assorted Scoped Storage bugs
Many software renderer improvements, both performance and accuracy